if your using WPA checkout my previous post
i only saw this issue with wpa, but theorectically i suppose it could happen with wep.
- also as i posted, ive found the range of wifi with the iliad is quite limited, compare with some other devices i own.
as for other programs, not that i know of, the iLiad just uses std linux wifi tools though, so should be possible... also if you know some linux you can use the cmd line wifi tools directly.
my post also supplies an updated script which has increased debugging, so can give clues to issues.
btw, search function is your friend ;o)